Description : What are the three requirements necessary for oscillations to exist in a circuit?
Last Answer : Amplification, regenerative feedback, and frequency-determining device.
Description : Match every stage of the software Development Life cycle with the Testing Life cycle: i. Hi-level design a Unit tests ii. Code b Acceptance tests iii. Low-level design c System tests iv. Business requirements d Integration tests a) i-d , ii ... i-b , ii-a , iii-d , iv-c d) i-c , ii-a , iii-d , iv-b
Last Answer : d) i-c , ii-a , iii-d , iv-b
Description : In which testing strategy requirements established during requirements analysis are validated against developed software? (A) Validation testing (B) Integration testing (C) Regression testing (D) System testing
Last Answer : (A) Validation testing
Description : VLIC (Very Large Integration Circuit) technology was used in which generation ? 1) First generation 2) Second generation 3) Third generation 4) Fourth generation
Last Answer : 4) Fourth generation
Description : VLIC (Very Large Integration Circuit) technology was used in which generation ? 1 First generation 2 Second generation 3 Third generation 4 Fourth generation
Last Answer : 4 Fourth generation
Description : What are the basic requirements for any splice or terminal connection?
Last Answer : The connection must be both mechanically and electrically as strong as the conductor or device with which it is used
Description : What are the three basic requirements for sound?
Last Answer : A source, medium, and detector (receiver).
Description : What are the three requirements for a wave to be propagated?
Description : What are the three requirements for an operational amplifier?
Last Answer : . Very high gain, very high input impedance, very low output
Description : What type of tube best meets the requirements of a modulator switching element?
Last Answer : Thyratron.
Description : What basic circuits meet the requirements of an externally synchronized master oscillator?
Last Answer : Sine-wave oscillator, single-swing blocking oscillator, and master trigger (astable) multivibrator.
Description : Training requirements for (2M) repair personnel were developed under guidelines established by what organization?
Last Answer : Chief of Naval Operations (CNO).
Description : When you replace components, identification marks must meet what requirements?
Last Answer : They should be readable from a single point.
Description : Who is responsible for meeting environmental and electrical requirements of a system?
Last Answer : Equipment designers (planners).
Description : In what publication are environmental requirements for equipment defined?
Last Answer : Procurement specifications.
Description : Which of the above requirements is most important?
Last Answer : . Reliability.
Description : What are the three fundamental requirements of a military communications system?
Last Answer : Reliability, security, and speed.
Description : What are the three requirements for an AM demodulator?
Last Answer : (1) Sensitive to the type of modulation applied, (2) nonlinear, and (3) provide filtering.
Description : What are the three requirements for cw transmission?
Last Answer : A method of generating oscillations, a method of turning the oscillations on and off (keying), and an antenna to radiate the energy.
Description : Which type of splice is used to splice a lighting fixture to a branch circuit?
Last Answer : Fixture joint.
Description : What type circuit is used to produce square or rectangular waves?
Last Answer : Multivibrator.
Description : . What characteristic of an RL circuit allows it to act as an integrator?
Last Answer : The ability of the inductor to oppose a change in current.
Description : If C4 were removed from the circuit, what would happen to the output of the amplifier?
Last Answer : The output would decrease. (C4 decouples R2 preventing degenerative feedback from R2.)
Description : Can a parallel LC circuit be used as the frequency determining network for an rf amplifier?
Last Answer : Yes.
Description : If the output impedance of an amplifier circuit is decreased, what is the effect on the gain?
Last Answer : The gain decreases.
Description : What component in an amplifier circuit tends to limit the low-frequency response of the amplifier?
Last Answer : The coupling capacitor (C3).
Description : What type filter is used to allow a narrow band of frequencies to pass through a circuit and attenuate all other frequencies above or below the desired band?
Last Answer : Bandpass.
Description : What term is used to describe the frequency at which the filter circuit changes from the point of rejecting the unwanted frequencies to the point of passing the desired frequencies?
Last Answer : Frequency cutoff (fco).
Description : What is the band of frequencies called that is included between the two points at which current falls to 70 percent of its maximum value in a resonant circuit?
Last Answer : Bandwidth of the circuit
Description : When is line current minimum in a parallel-LC circuit?
Last Answer : At the resonant frequency.
Description : In a parallel-resonant circuit, what is the relationship between impedance and current?
Last Answer : Maximum impedance, minimum current.
Description : What is the term for the number of times per second that tank circuit energy is either stored in the inductor or capacitor?
Last Answer : Natural frequency or resonant frequency (f r).
Description : When the magnetic field of the inductor is completely collapsed, where is the energy of the tank circuit stored?
Last Answer : . Capacitor.
Description : When the capacitor is completely discharged, where is the energy of the tank circuit stored?
Last Answer : Inductor magnetic field
Description : In a series-RLC circuit, what is the condition of the circuit if there is high impedance, low current, and low reactance voltages
Last Answer : Nonresonant (circuit is either above or below resonance)
Description : . In an "ideal" resonant circuit, what is the relationship between impedance and current?
Last Answer : Impedance low Current high.
Description : In an a.c. circuit that contains both an inductor and a capacitor, what term is used for the difference between the individual reactances?
Last Answer : Resultant reactance.
Description : What is the output current in the common-collector circuit?
Last Answer : IE.
Description : What is the current gain in a common-base circuit called?
Last Answer : Alpha (α).
Description : What method for checking transistors is cumbersome when more than one transistor is bad in a circuit?
Last Answer : The substitution method.
Description : What is the input current in the common-emitter circuit?
Last Answer : Base current (IB).
Description : What must be done to a circuit before you can use an ohmmeter for testing?
Last Answer : It must be de-energized.
Description : Is an ammeter connected in series or in parallel with the circuit under test?
Last Answer : . In series.
Description : When taking a voltage measurement, which lead of the voltmeter should you connect to the circuit first?
Last Answer : Ground.
Description : What tool is used to de-energize capacitors in a circuit that has been disconnected from its power source?
Last Answer : Shorting probe.
Description : What precaution should you take when substituting a synchro tester in a circuit for a transmitter?
Last Answer : Use only one receiver so as not to overload the tester.
Description : What type of indicator is usually placed in the stator circuit of a torque synchro system?
Last Answer : An overload indicator.
Description : How are synchro capacitors connected in a circuit?
Last Answer : They are delta-connected across the stator windings.